Lilac Orchid Vine
Lion's Tail, Lion's-Ear
Lippia, Creeping Lippia
Little Beardtongue
Little Leaf Ash
Little-Leaf Cordia
Littleleaf or Desert Sumac
Live Oak
Lombardy Poplar
Lowfast Bearberry Cotoneaster
Manfreda
Mangle Dulce
Marginata Agave
Marjorie Channon' Pittisporum
Massawana Aloe
Mastic Tree
Matchweed, Snakeweed, Resinweed
Maul or Goldencup Oak, Canyon Live
Maximilian Sunflower
Mealy Cup Blue Sage